Subgrade
The native soil or improved soil, usually compacted, that underlies a road, pavement, or slab.
Subgrade refers to the prepared surface on which a road, pavement, or foundation is laid, ensuring stability and load-bearing capacity. It is crucial for optimizing performance, preventing settlement, and enhancing durability. By providing a stable base, subgrades support efficient construction, improve quality, and contribute to successful project delivery by ensuring that surfaces are well-prepared, aligned with design specifications, and capable of withstanding applied loads and environmental conditions.
Used in a sentence
The subgrade was prepared before laying the asphalt.
Synonyms/variation
Base
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